System reliability · AS 91360
Demonstrate understanding of redundancy and reliability in technological systems
Level 2 · Year 124 creditsExternalAchievement StandardTechnology 2.17
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National attainment · NZQA · 2024
175 students sat this in 2024 · 83% passed
Excellence22.9%
Merit33.9%
Achieved26.3%
Not Achieved16.9%
In plain EnglishAI-generated · cross-checked against the NZQA assessment report
This standard asks you to explain why systems need backup parts or extra components (redundancy) and how we make sure systems work reliably over time. You need to describe real examples of how redundancy and reliability were actually built into a technological system you've studied or worked on.
What you actually do
- ·Explain why redundancy matters in technological systems (what happens without backup components)
- ·Explain why reliability matters in technological systems (why systems need to work consistently)
- ·Describe how redundancy was actually applied in a real technological system
- ·Describe how reliability was actually addressed in that same system
- ·Show you understand the difference between backup parts (redundancy) and consistent performance (reliability)
AAchieved
You explain both redundancy and reliability in general terms, then describe how they were used in a real system.
MMerit
You explain why specific redundancy and reliability decisions were made in the development of your chosen system, not just what was done.